According to People, Dion’s husband, René Angélil had a tumor removed from his throat last December and it has caused “a very difficult and stressful time,” for the singer. The recent surgery forced the 72-year-old Angélil to step down as her manager after more than 30 years. The removal of the tumor also followed an earlier treatment for throat cancer in 1999.

“I want to devote every ounce of my strength and energy to my husband’s healing, and to do so, it’s important for me to dedicate this time to him and to our children,” Dion said in a statement to People. “I also want to apologize to all my fans everywhere, for inconveniencing them, and I thank them so much for their love and support.”